CN104977320A - Ceramic gas-sensitive sensor for alcohol detection - Google Patents
Ceramic gas-sensitive sensor for alcohol detection Download PDFInfo
- Publication number
- CN104977320A CN104977320A CN201510306039.0A CN201510306039A CN104977320A CN 104977320 A CN104977320 A CN 104977320A CN 201510306039 A CN201510306039 A CN 201510306039A CN 104977320 A CN104977320 A CN 104977320A
- Authority
- CN
- China
- Prior art keywords
- sensitive
- gas
- material layer
- tin chloride
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The present invention discloses a ceramic gas-sensitive sensor for alcohol detection. The sensor includes a semiconductor ceramic substrate, a heating material layer, an electrode and a gas-sensitive material layer. The gas-sensitive material layer is obtained by using the following method: preparing antimony trioxide and zinc oxide into a salt solution, preparing tin chloride into a tin chloride ethanol solution, adding the salt solution to the tin chloride ethanol solution for mixed reaction, adding an appropriate amount of a chelating agent, dropwise adding ammonia solution to adjust the pH value to 9.0; filtering and recovering the precipitate, washing and sintering the precipitate to obtain a doped nano powder; weighing yttria, lanthanum oxide, doped nano powder and water, mixing and grinding into a gas-sensitive slurry; and applying the gas-sensitive slurry to the surface of semiconductor ceramic substrate to form a gas-sensitive material. Through blending the proportional change of tin, zinc and lanthanum, the sensitivity of sensitive material layer to alcohol is improved, and the sensitivity of alcohol detection is enhanced; in addition, by introducing antimony and yttrium, the resistivity of sensitive material layer is greatly reduced to ensure reliable operation of the signal analysis component.
Description
Technical field
The present invention relates to gas sensor field, be specifically related to a kind of ceramic gas sensor for alcohol detection.
Background technology
Semiconductor ceramics gas sensor may be used for the content of alcohol steam in analytical gas, is usually used in drunk driving and detects.Heating material layer, electrode and air-sensitive material layer that semiconductor ceramics gas sensor is arranged primarily of matrix and matrix surface.In order to avoid being subject to other gases affects in environment during alcohol detection, the therefore general element such as lanthanum, manganese that adulterates in gas sensitive layer, in order to improve the induction sensitivity of gas sensitive layer to alcohol gas.But along with going deep into of research, lanthanum element doping can make the initial resistance of sensor excessive, has an impact to the operation of signal analysis components and parts, affects the transmission of signal.Therefore, the gas sensor that resistance value under a kind of state of nature is lower is provided to provide.
Summary of the invention
The object of the present invention is to provide a kind of ceramic gas sensor for alcohol detection, it can effectively solve the problem, little and highly sensitive to alcohol of initial resistivity value.
For realizing such scheme, the present invention adopts following technical scheme to implement:
For a ceramic gas sensor for alcohol detection, it is characterized in that: comprise heating material layer, electrode and air-sensitive material layer that semiconductor ceramics matrix and semiconductor ceramics matrix are arranged; Described gas sensitive layer is adopted and is obtained with the following method:
0.003g antimony oxide and 0.5g zinc paste are dissolved in 5ml hydrochloric acid solution and are configured to salt solusion, 8g tin chloride is dissolved in 35ml ethanol and makes tin chloride ethanolic solution, salt solusion is added under agitation mixing reaction in tin chloride ethanolic solution, add appropriate sequestrant subsequently and drip ammoniacal liquor adjustment PH to 9.5; Filtered and recycled sediment also utilizes ethanol to wash sediment, and after washing, sintering obtains the nano-powder adulterated; Take the mixing of 0.02 ~ 0.05g yttria, 0.18 ~ 0.25g lanthanum sesquioxide, the nano-powder of the above-mentioned doping of producing of 100g and 25ml water and grind to form air-sensitive slurry, used by semiconductor ceramics matrix deionized water, acetone, chloroform clean successively, the surface after oven dry, air-sensitive slurry being coated to semiconductor ceramics matrix forms gas sensitive layer.
By the change of allotment tin, zinc, lanthanum ratio, improve gas sensitive layer to the susceptibility of alcohol, improve the sensitivity of alcohol detection; In addition, by introducing antimony, yttrium, the resistivity of gas sensitive layer being reduced greatly, ensureing the reliability service of signal analysis components and parts.
Embodiment
In order to make objects and advantages of the present invention clearly understand, below in conjunction with embodiment, the present invention is described in detail further.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Embodiment 1:
0.003g antimony oxide and 0.5g zinc paste are dissolved in 5ml hydrochloric acid (45%) solution and are configured to salt solusion, 8g tin chloride is dissolved in 35ml ethanol (70%) and makes tin chloride ethanolic solution, salt solusion is added under agitation normal temperature mixing reaction 1h in tin chloride ethanolic solution, add appropriate sequestrant (as 0.06g polymethylacrylic acid) subsequently and drip ammoniacal liquor adjustment PH to 9.5; Filtered and recycled sediment also utilizes ethanol to wash sediment, and first 80 DEG C of oven dry after washing, then 550 DEG C of sintering obtain the nano-powder adulterated.Take 0.02 ~ 0.05g yttria, 0.18 ~ 0.25g lanthanum sesquioxide, the above-mentioned doping of producing of 100g the mixing of nano-powder and 25ml water become air-sensitive slurry in grinding in ball grinder, used by alumina ceramic tube deionized water, acetone, chloroform clean successively, at alumina ceramic tube internal coat ruthenium resistance slurry after oven dry, ceramic pipe outside is coated with air-sensitive slurry, ceramic pipe outside surface sets up gold electrode, two ends by platinum wire extraction electrode, obtains ceramic gas sensor after welding, encapsulation.
To above-mentioned ceramic gas sensor performance carry out detection and and control sensor compare, the gas sensor obtained in embodiment 1 and control sensor are removed air-sensitive material layer and are formed different, remaining embodiment is all consistent, and the working temperature of gas sensor is 280 DEG C; In control sensor, gas sensitive layer consists of lanthanum, tin, and the result compared is specific as follows:
The ceramic pipe of same model size, in embodiment 1, gas sensor initial resistance is in its natural state only 0.8M Ω, and control sensor initial resistance in its natural state reaches 125M Ω; In embodiment 1, gas sensor is respectively 61.2 and 2.45 to the ethanol of 1000ppm and the response sensitivity of carbon monoxide; Control sensor is respectively 54.5 and 8.74 to the ethanol of 1000ppm and the response sensitivity of carbon monoxide; In embodiment 1, gas sensor is respectively 33.6 and 1.52 to the ethanol of 250ppm and the response sensitivity of carbon monoxide; Control sensor is respectively 28.7 and 2.13 to the ethanol of 250ppm and the response sensitivity of carbon monoxide; In embodiment 1, gas sensor is respectively 9.84 and 1.08 to the ethanol of 50ppm and the response sensitivity of carbon monoxide; Control sensor is respectively 8.27 and 1.12 to the ethanol of 50ppm and the response sensitivity of carbon monoxide.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. for a ceramic gas sensor for alcohol detection, it is characterized in that: comprise heating material layer, electrode and air-sensitive material layer that semiconductor ceramics matrix and semiconductor ceramics matrix are arranged; Described gas sensitive layer is adopted and is obtained with the following method:
0.003g antimony oxide and 0.5g zinc paste are dissolved in 5ml hydrochloric acid solution and are configured to salt solusion, 8g tin chloride is dissolved in 35ml ethanol and makes tin chloride ethanolic solution, salt solusion is added under agitation mixing reaction in tin chloride ethanolic solution, add appropriate sequestrant subsequently and drip ammoniacal liquor adjustment PH to 9.5; Filtered and recycled sediment also utilizes ethanol to wash sediment, and after washing, sintering obtains the nano-powder adulterated; Take 0.02 ~ 0.05g yttria, 0.18 ~ 0.25g tri-is oxidized two or two lanthanums, the nano-powder of the above-mentioned doping of producing of 100g and the mixing of 25ml water grind to form air-sensitive slurry, used by semiconductor ceramics matrix deionized water, acetone, chloroform clean successively, the surface after oven dry, air-sensitive slurry being coated to semiconductor ceramics matrix forms gas sensitive layer.
2. the ceramic gas sensor for alcohol detection according to claim 1, it is characterized in that: semiconductor ceramics matrix is alumina ceramic tube, ceramic tube inside coating ruthenium resistance slurry, ceramic pipe outside is coated with air-sensitive slurry, and ceramic pipe outside surface has gold electrode, two ends by platinum wire extraction electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306039.0A CN104977320B (en) | 2015-06-03 | 2015-06-03 | A kind of ceramic gas sensor for alcohol detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510306039.0A CN104977320B (en) | 2015-06-03 | 2015-06-03 | A kind of ceramic gas sensor for alcohol detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104977320A true CN104977320A (en) | 2015-10-14 |
| CN104977320B CN104977320B (en) | 2017-11-14 |
Family
ID=54274035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510306039.0A Active CN104977320B (en) | 2015-06-03 | 2015-06-03 | A kind of ceramic gas sensor for alcohol detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104977320B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548263A (en) * | 2016-01-29 | 2016-05-04 | 武汉工程大学 | Hydrogen sulfide gas-sensitive material, preparation thereof and manufacturing method of hydrogen sulfide gas-sensitive device |
| WO2017152745A1 (en) * | 2016-03-11 | 2017-09-14 | 夏普株式会社 | Lanthanum-doped formaldehyde-sensitive material and preparation method therefor, and formaldehyde sensor |
| CN107300573A (en) * | 2017-05-25 | 2017-10-27 | 南京工业大学 | A kind of preparation method of high sensitivity ethanol gas sensor |
| CN110735114A (en) * | 2019-09-30 | 2020-01-31 | 安徽省含山县锦华氧化锌厂 | composition for semiconductor sensor based on zinc oxide doping |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547269A (en) * | 2003-12-11 | 2004-11-17 | 上海大学 | Method for making ferric oxide/stannic oxide bilaminar membrane alcohol sensitive element |
| CN101329293A (en) * | 2007-06-22 | 2008-12-24 | 郑州炜盛电子科技有限公司 | Semiconductor gas sensor for alcohol steam and expiration alcohol detection |
| JP2011123076A (en) * | 2009-12-14 | 2011-06-23 | Siemens Ag | Carbon dioxide sensor and associated method for generating gas measurement value |
| CN103364453A (en) * | 2013-06-28 | 2013-10-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Tin oxide-zinc oxide composite hollow microsphere air-sensitive sensing device and preparation method thereof |
-
2015
- 2015-06-03 CN CN201510306039.0A patent/CN104977320B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1547269A (en) * | 2003-12-11 | 2004-11-17 | 上海大学 | Method for making ferric oxide/stannic oxide bilaminar membrane alcohol sensitive element |
| CN101329293A (en) * | 2007-06-22 | 2008-12-24 | 郑州炜盛电子科技有限公司 | Semiconductor gas sensor for alcohol steam and expiration alcohol detection |
| JP2011123076A (en) * | 2009-12-14 | 2011-06-23 | Siemens Ag | Carbon dioxide sensor and associated method for generating gas measurement value |
| CN103364453A (en) * | 2013-06-28 | 2013-10-23 | 上海纳米技术及应用国家工程研究中心有限公司 | Tin oxide-zinc oxide composite hollow microsphere air-sensitive sensing device and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| 沈茹娟等: ""纳米ZnO的固相合成及其气敏特性"", 《无机材料学报》 * |
| 王丹丹等: ""钇掺杂氧化锌薄膜的研究进展"", 《半导体技术》 * |
| 郭冠铭等: ""水热法制备稀土掺杂二氧化锡及其对乙醇气敏性能的研究"", 《第十六届冶金反应工程学会议论文集》 * |
| ***等: ""氧化锌- 氧化锑复合掺杂二氧化锡基陶瓷的制备与电学性能"", 《硅酸盐学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548263A (en) * | 2016-01-29 | 2016-05-04 | 武汉工程大学 | Hydrogen sulfide gas-sensitive material, preparation thereof and manufacturing method of hydrogen sulfide gas-sensitive device |
| WO2017152745A1 (en) * | 2016-03-11 | 2017-09-14 | 夏普株式会社 | Lanthanum-doped formaldehyde-sensitive material and preparation method therefor, and formaldehyde sensor |
| CN107300573A (en) * | 2017-05-25 | 2017-10-27 | 南京工业大学 | A kind of preparation method of high sensitivity ethanol gas sensor |
| CN107300573B (en) * | 2017-05-25 | 2020-04-28 | 南京工业大学 | Preparation method of high-sensitivity ethanol gas sensor |
| CN110735114A (en) * | 2019-09-30 | 2020-01-31 | 安徽省含山县锦华氧化锌厂 | composition for semiconductor sensor based on zinc oxide doping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104977320B (en) | 2017-11-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104977320A (en) | Ceramic gas-sensitive sensor for alcohol detection | |
| CN104034759B (en) | A kind of MEMS semiconductor gas sensor and manufacture method thereof and gas detection method | |
| CN103713016B (en) | Palladium doping stannic oxide enveloped carbon nanometer tube and its preparation method and application | |
| CN104713915B (en) | A kind of high-performance gas sensor based on laminated construction and preparation method thereof | |
| CN103954665B (en) | Based on sandblasting processing porous YSZ substrate blend together electric potential type NO2sensor and preparation method | |
| CN107607590B (en) | Based on the flower-shaped WO of PANI@3The flexible NH of sensitive material3Sensor and its application | |
| WO2010044935A3 (en) | Sensitive materials for gas sensing and method of making same | |
| CN102628824A (en) | Gas sensitive element taking houghite as precursor and preparation method thereof | |
| CN105424757A (en) | High-gas-sensitivity multi-element-compounding metal oxide, preparing method and application | |
| CN107290389A (en) | Gas sensitive of low concentration formaldehyde and preparation method thereof, gas sensor are detected for room temperature | |
| CN110470701A (en) | A kind of rear-earth-doped oxidation sijna rice gas sensitive, preparation method and its preparation gas-sensitive detector | |
| CN109916966B (en) | alpha-Fe2O3/TiO2Nanocomposite and H prepared therefrom2S gas sensor | |
| CN102784927B (en) | Method for preparing high-performance sheet silver powder | |
| CN107311234A (en) | A kind of preparation method of zinc oxide/zinc ferrite nano composite material and application | |
| CN105572170B (en) | SnO with environment epidemic disaster self compensation ability2Base hot wire type semiconductor gas sensor | |
| CN108956717A (en) | One kind being based on PANI@SnO2The flexible flat formula ammonia gas sensor of nano sensitive material and its application | |
| CN110514700A (en) | A kind of copper oxide and cobaltosic oxide heterogeneous structural nano line composite sensitive material, ethylene glycol sensor and preparation method | |
| CN108120747B (en) | Preparation method of tin dioxide-based gas sensitive element and carbon monoxide gas sensor system | |
| CN106018496A (en) | Method for preparing high-sensitivity low working temperature ethanol gas sensor element | |
| CN106290728A (en) | A kind of gas sensitive detecting formaldehyde and preparation method thereof | |
| CN1320667C (en) | Manufacturing method of hydrogen sulfide semiconductor sensor gas sensitive element | |
| CN107817277A (en) | The preparation method of new high selectivity acetone gas sensor | |
| CN107085027A (en) | A kind of composite nano materials of room temperature detection hydrogen sulfide and its preparation method and application | |
| CN107817273A (en) | The preparation method of aluminium, Ti doped Zinc oxide-base acetone gas sensor | |
| CN107640793B (en) | Discontinuous two-sided hetero-junctions sandwich stannic oxide-nickel oxide-stannic oxide preparation method and products thereof and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171020 Address after: 246000 Anhui Province, Anqing City Yingjiang District Evergreen Industrial Park Applicant after: Anhui Lanxi Engineering Technology Development Co., Ltd. Address before: 246003 Yingjiang District of Anhui province Anqing City Yingjiang District HuaSheng Road No. 22 Applicant before: Hu Qifang |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201221 Address after: 233000 No.10, building 32, Zone 8, Guangcai market, bengshan District, Bengbu City, Anhui Province Patentee after: Bengbu Hongjing Technology Co.,Ltd. Address before: 246000 Changqing Industrial Park, Yingjiang District, Anqing City, Anhui Province Patentee before: ANHUI LANXI ENGINEERING TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211209 Address after: 215000 West, 2nd floor, No. 26, Yangshan science and Technology Industrial Park, No. 8, Jinyan Road, high tech Zone, Suzhou, Jiangsu Patentee after: Gaoxin environmental protection technology (Suzhou) Co.,Ltd. Address before: 233000 No.10, building 32, Zone 8, Guangcai market, bengshan District, Bengbu City, Anhui Province Patentee before: Bengbu Hongjing Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |